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Finding the Fourth Proportional to 901.68, 1,351.50 and 353.58

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Solution

The fourth proportional to 901.68, 1,351.50 and 353.58 is: 529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.68 : 1,351.50 = 353.58 : x
  2. Step 2: Convert to fraction form
    901.68/1,351.50 = 353.58/x
  3. Step 3: Cross multiply
    901.68x = 1,351.50 × 353.58
  4. Step 4: Simplify right side
    901.68x = 477,863.37
  5. Step 5: Solve for x
    x = 477,863.37/901.68
  6. Step 6: Final answer
    x = 529.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.